Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2023 5 14.  Predictions up to the next  14.0 days:

     Date     Time(FY3D) FY3D Lat/Lon Date Time(LANDSAT-8) LANDSAT-8 Lat/Lon    Distance(km)  Time Diff(sec)
 05/16/2023   08:28:11   (  73.62,  52.30) 05/16/2023   08:29:18  (  73.53,  54.48)   69.39                67
 05/16/2023   09:18:43   ( -72.97,-138.91) 05/16/2023   09:18:56  ( -72.98,-138.99)    2.86                13
 05/16/2023   10:09:28   (  72.91,  28.55) 05/16/2023   10:08:23  (  72.90,  28.48)    2.48                65
 05/18/2023   23:55:13   ( -73.42,   1.03) 05/18/2023   23:56:23  ( -73.36,   2.36)   42.90                70
 05/19/2023   00:45:51   (  73.01, 169.26) 05/19/2023   00:45:55  (  73.00, 169.29)    1.51                 4
 05/19/2023   01:36:34   ( -72.91, -23.19) 05/19/2023   01:35:24  ( -72.94, -23.21)    3.35                70
 05/21/2023   15:22:14   (  73.18, -50.16) 05/21/2023   15:23:25  (  73.13, -49.85)   11.27                71
 05/21/2023   16:12:56   ( -73.02, 117.51) 05/21/2023   16:12:55  ( -73.02, 117.55)    1.24                 1
 05/21/2023   17:03:36   (  72.71, -74.51) 05/21/2023   17:02:24  (  72.81, -75.20)   25.43                72
 05/24/2023   06:49:18   ( -73.09,-101.69) 05/24/2023   06:50:26  ( -73.12,-101.64)    3.36                68
 05/24/2023   07:40:03   (  73.04,  65.73) 05/24/2023   07:39:53  (  73.02,  65.81)    3.23                10
 05/24/2023   08:30:39   ( -72.57,-125.96) 05/24/2023   08:29:29  ( -72.59,-127.39)   47.68                70
 05/26/2023   22:16:24   (  73.07,-153.40) 05/26/2023   22:17:24  (  73.09,-153.45)    2.35                60
 05/26/2023   23:07:08   ( -73.00,  14.07) 05/26/2023   23:06:53  ( -73.03,  14.07)    3.01                15